Effect of different dietary concentrations of amino acids on the performance of two different broiler strains
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Publication Date: | 2013 |
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Format: | Article |
Language: | eng |
Source: | Repositório Institucional da UFRGS |
Download full: | http://hdl.handle.net/10183/107126 |
Summary: | Four Nutritional Programs (NP) used in the Brazilian poultry industry were tested in two broiler strains (Cobb 500 and Ross 308). NP varied in the concentrations of their main essential amino acids (AA) and were classified as Low, Regular, High and Mixed (high AA concentrations up to 21 days and regular concentrations after that). Minimum digestible Met+Cys/Lys, Thr/Lys, Arg/Lys, Ile/Lys, and Val/Lys ratios were 0.74, 0.64, 1.05, 0.65 and 0.75, respectively, in all NP, and no minimum amount of CP was fixed. There were no interactions between strain and NP for any of the evaluated responses. From 1 to 47 days of age, birds fed the Low NP presented lower average body weight and body weight gain (BWG). The high NP allowed for better feed conversion ratio (FCR), followed by the Regular and the Mixed NP. Ross 308 broilers were heavier, presenting worse FCR due to higher FI. Birds fed the High NP had lower carcass yield than those fed the Low NP. The Low and Regular NP had lower costs per WG when compared with the High NP. Low and Regular NP presented higher gross margin returns compared with the High NP. The Regular and Mixed NP are the most recommended, presenting intermediate performance and higher economic returns. |
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Ebling, Patricia DinizRibeiro, Andrea Machado LealTrevizan, LucianoSilva, Isabel Cristina Mello daKessler, Alexandre de MelloRubin, Lauricio Librelotto2014-11-19T02:15:55Z20131516-635Xhttp://hdl.handle.net/10183/107126000938218Four Nutritional Programs (NP) used in the Brazilian poultry industry were tested in two broiler strains (Cobb 500 and Ross 308). NP varied in the concentrations of their main essential amino acids (AA) and were classified as Low, Regular, High and Mixed (high AA concentrations up to 21 days and regular concentrations after that). Minimum digestible Met+Cys/Lys, Thr/Lys, Arg/Lys, Ile/Lys, and Val/Lys ratios were 0.74, 0.64, 1.05, 0.65 and 0.75, respectively, in all NP, and no minimum amount of CP was fixed. There were no interactions between strain and NP for any of the evaluated responses. From 1 to 47 days of age, birds fed the Low NP presented lower average body weight and body weight gain (BWG). The high NP allowed for better feed conversion ratio (FCR), followed by the Regular and the Mixed NP. Ross 308 broilers were heavier, presenting worse FCR due to higher FI. Birds fed the High NP had lower carcass yield than those fed the Low NP. The Low and Regular NP had lower costs per WG when compared with the High NP. Low and Regular NP presented higher gross margin returns compared with the High NP. The Regular and Mixed NP are the most recommended, presenting intermediate performance and higher economic returns.application/pdfengRevista brasileira de ciência avícola= Brazilian journal of poultry science. Campinas, SP. Vol. 15, n. 4 (out/dez 2013), p. 339-346Frango de corteNutricao animalEconomic evaluationBrazilian nutritional programsCarcass yieldEffect of different dietary concentrations of amino acids on the performance of two different broiler strainsinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000938218.pdf000938218.pdfTexto completo (inglês)application/pdf581802http://www.lume.ufrgs.br/bitstream/10183/107126/1/000938218.pdfc606d90fd448afbc982e097555797c86MD51TEXT000938218.pdf.txt000938218.pdf.txtExtracted Texttext/plain34550http://www.lume.ufrgs.br/bitstream/10183/107126/2/000938218.pdf.txtf82b43ccd392aaefccde4ad7a8509b3dMD52THUMBNAIL000938218.pdf.jpg000938218.pdf.jpgGenerated Thumbnailimage/jpeg2016http://www.lume.ufrgs.br/bitstream/10183/107126/3/000938218.pdf.jpg4f74e6551c9e1e07b595f960eaa8ebc8MD5310183/1071262018-10-22 08:02:34.29oai:www.lume.ufrgs.br:10183/107126Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-22T11:02:34Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Effect of different dietary concentrations of amino acids on the performance of two different broiler strains |
title |
Effect of different dietary concentrations of amino acids on the performance of two different broiler strains |
spellingShingle |
Effect of different dietary concentrations of amino acids on the performance of two different broiler strains Ebling, Patricia Diniz Frango de corte Nutricao animal Economic evaluation Brazilian nutritional programs Carcass yield |
title_short |
Effect of different dietary concentrations of amino acids on the performance of two different broiler strains |
title_full |
Effect of different dietary concentrations of amino acids on the performance of two different broiler strains |
title_fullStr |
Effect of different dietary concentrations of amino acids on the performance of two different broiler strains |
title_full_unstemmed |
Effect of different dietary concentrations of amino acids on the performance of two different broiler strains |
title_sort |
Effect of different dietary concentrations of amino acids on the performance of two different broiler strains |
author |
Ebling, Patricia Diniz |
author_facet |
Ebling, Patricia Diniz Ribeiro, Andrea Machado Leal Trevizan, Luciano Silva, Isabel Cristina Mello da Kessler, Alexandre de Mello Rubin, Lauricio Librelotto |
author_role |
author |
author2 |
Ribeiro, Andrea Machado Leal Trevizan, Luciano Silva, Isabel Cristina Mello da Kessler, Alexandre de Mello Rubin, Lauricio Librelotto |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Ebling, Patricia Diniz Ribeiro, Andrea Machado Leal Trevizan, Luciano Silva, Isabel Cristina Mello da Kessler, Alexandre de Mello Rubin, Lauricio Librelotto |
dc.subject.por.fl_str_mv |
Frango de corte Nutricao animal |
topic |
Frango de corte Nutricao animal Economic evaluation Brazilian nutritional programs Carcass yield |
dc.subject.eng.fl_str_mv |
Economic evaluation Brazilian nutritional programs Carcass yield |
description |
Four Nutritional Programs (NP) used in the Brazilian poultry industry were tested in two broiler strains (Cobb 500 and Ross 308). NP varied in the concentrations of their main essential amino acids (AA) and were classified as Low, Regular, High and Mixed (high AA concentrations up to 21 days and regular concentrations after that). Minimum digestible Met+Cys/Lys, Thr/Lys, Arg/Lys, Ile/Lys, and Val/Lys ratios were 0.74, 0.64, 1.05, 0.65 and 0.75, respectively, in all NP, and no minimum amount of CP was fixed. There were no interactions between strain and NP for any of the evaluated responses. From 1 to 47 days of age, birds fed the Low NP presented lower average body weight and body weight gain (BWG). The high NP allowed for better feed conversion ratio (FCR), followed by the Regular and the Mixed NP. Ross 308 broilers were heavier, presenting worse FCR due to higher FI. Birds fed the High NP had lower carcass yield than those fed the Low NP. The Low and Regular NP had lower costs per WG when compared with the High NP. Low and Regular NP presented higher gross margin returns compared with the High NP. The Regular and Mixed NP are the most recommended, presenting intermediate performance and higher economic returns. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013 |
dc.date.accessioned.fl_str_mv |
2014-11-19T02:15:55Z |
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http://hdl.handle.net/10183/107126 |
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1516-635X |
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000938218 |
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http://hdl.handle.net/10183/107126 |
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eng |
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eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Revista brasileira de ciência avícola= Brazilian journal of poultry science. Campinas, SP. Vol. 15, n. 4 (out/dez 2013), p. 339-346 |
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openAccess |
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